Malicious PDF — malware analysis report

Static analysis result for SHA-256 1918fd3f2170278f…

MALICIOUS

PDF

311.5 KB Created: 2022-02-01 23:45:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 3dfe22bcd9b9429839dbfc8cadc29740 SHA-1: e936ddac883b4bea6594a556aa5bb82f895c697a SHA-256: 1918fd3f2170278f3b94222812f64beefd1c6226b1f882321e5fb79959427237
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7681

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://lazav.co.za/XSRYdR1H?utm_term=simultaneous+equations+maths+genie+worksheet PDF link annotation
    • https://madeinstlucia.com/userfiles/files/webobi.pdfIn PDF document text
    • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e8fd2b4409b---rubexonovivejajovawi.pdfIn PDF document text
    • https://rajatotogroup3.com/contents//files/71941995278.pdfIn PDF document text
    • http://rediscover.today/databank/files/3190169767.pdfIn PDF document text
    • http://huntland.hu/upload/file/33494004518.pdfIn PDF document text
    • https://www.kpglearningbox.com/assets/kcfinder/upload/files/40588526987.pdfIn PDF document text
    • http://a-spa.org/ckeditor/kcfinder/upload/files/budoxejeru.pdfIn PDF document text
    • http://ckrestaurantgroup.com/ckfinder/userfiles/files/minoburedexu.pdfIn PDF document text
    • https://doublehair.center/upload/ckfinder/files/18838708487.pdfIn PDF document text
    • http://ms-beauty.com/ckfinder/userfiles/files/58321888524.pdfIn PDF document text
    • https://lifecareproduct.in/ckfinder/userfiles/files/37755013138.pdfIn PDF document text
    • http://guinyardfamilyreunion.com/clients/62985/File/totesirezi.pdfIn PDF document text
    • https://riondene.ch/img/uploads/file/57660606402.pdfIn PDF document text
    • http://jx4d.com/userfiles/file/88618427911.pdfIn PDF document text
    • https://venefoil.com/ckfinder/userfiles/files/60306487598.pdfIn PDF document text
    • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/29366287821.pdfIn PDF document text
    • http://shriadinathbank.com/uploads/wibel.pdfIn PDF document text
    • http://mmbc.cz/_data/user_files/file/58547747617.pdfIn PDF document text
    • http://www.ak-kresy.pl/newsysn/kcfinder/upload/files/xemolepudopozadijakigaw.pdfIn PDF document text
    • http://ieltsadd.ir/cache/fck_files/file/korefapuwot.pdfIn PDF document text
    • https://thenovgorodspaceship.andreirozen.com/images/files/51597614602.pdfIn PDF document text
    • http://nextlab-semi.com/files/fckeditor/file/65129434344.pdfIn PDF document text
    • http://scandirent-new.ru/uploads/assets/file/rafonupupilujetiduvelog.pdfIn PDF document text
    • http://ciudadaniadesdeelaula.com/kcfinder/upload/files/74119646822.pdfIn PDF document text
    • https://dispecom.com/cms_dispecom/sgi_userfiles/userfiles/files/refupegasekumarosisubod.pdfIn PDF document text
    • http://sosonomo.com/ckfinder/userfiles/files/luxel.pdfIn PDF document text
    • http://garage-ys.info/js/upload/files/94562765522.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000472f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x472F0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00048a10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48A10 11052 bytes
SHA-256: d10d24ecf13494986a67fda821d8b34c0fa70df7663009b3a6b7cc936d44ec1f
font_02_sfnt_off0004a351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A351 16760 bytes
SHA-256: 16691f5bde4d84242e34590f67a32c0b8c2ef1637f9e5779301fdccf361de840

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